Finding the Fourth Proportional to 17,686.51, 24,407.39 and 9,729.27

Step by Step Solution

1. Step 1: Write the proportion equation
   17,686.51 : 24,407.39 = 9,729.27 : x
2. Step 2: Convert to fraction form
   17,686.51/24,407.39 = 9,729.27/x
3. Step 3: Cross multiply
   17,686.51x = 24,407.39 × 9,729.27
4. Step 4: Simplify right side
   17,686.51x = 237,466,087.31
5. Step 5: Solve for x
   x = 237,466,087.31/17,686.51
6. Step 6: Final answer
   x = 13,426.40